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comparison: src/protocols/oscar/chatnav.c

src/protocols/oscar/chatnav.c

changeset 2086
007508451e2c
child 2246
8ade8b7421af
equal deleted inserted replaced
2085:4659ae7bc69c 2086:007508451e2c
1 /*
2 * Handle ChatNav.
3 *
4 * [The ChatNav(igation) service does various things to keep chat
5 * alive. It provides room information, room searching and creating,
6 * as well as giving users the right ("permission") to use chat.]
7 *
8 */
9
10 #define FAIM_INTERNAL
11 #include <aim.h>
12
13 /*
14 * conn must be a chatnav connection!
15 */
16 faim_export unsigned long aim_chatnav_reqrights(struct aim_session_t *sess,
17 struct aim_conn_t *conn)
18 {
19
20 return aim_genericreq_n_snacid(sess, conn, 0x000d, 0x0002);
21 }
22
23 faim_export unsigned long aim_chatnav_clientready(struct aim_session_t *sess,
24 struct aim_conn_t *conn)
25 {
26 struct command_tx_struct *newpacket;
27 int i;
28
29 if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 0x20)))
30 return -1;
31
32 newpacket->lock = 1;
33
34 i = aim_putsnac(newpacket->data, 0x0001, 0x0002, 0x0000, sess->snac_nextid);
35
36 i+= aimutil_put16(newpacket->data+i, 0x000d);
37 i+= aimutil_put16(newpacket->data+i, 0x0001);
38
39 i+= aimutil_put16(newpacket->data+i, 0x0004);
40 i+= aimutil_put16(newpacket->data+i, 0x0001);
41
42 i+= aimutil_put16(newpacket->data+i, 0x0001);
43 i+= aimutil_put16(newpacket->data+i, 0x0003);
44
45 i+= aimutil_put16(newpacket->data+i, 0x0004);
46 i+= aimutil_put16(newpacket->data+i, 0x0686);
47
48 aim_tx_enqueue(sess, newpacket);
49
50 return (sess->snac_nextid++);
51 }
52
53 faim_export unsigned long aim_chatnav_createroom(struct aim_session_t *sess,
54 struct aim_conn_t *conn,
55 char *name,
56 u_short exchange)
57 {
58 struct command_tx_struct *newpacket;
59 int i;
60
61 if (!(newpacket = aim_tx_new(sess, conn, AIM_FRAMETYPE_OSCAR, 0x0002, 10+12+strlen("invite")+strlen(name))))
62 return -1;
63
64 newpacket->lock = 1;
65
66 i = aim_putsnac(newpacket->data, 0x000d, 0x0008, 0x0000, sess->snac_nextid);
67
68 /* exchange */
69 i+= aimutil_put16(newpacket->data+i, exchange);
70
71 /* room cookie */
72 i+= aimutil_put8(newpacket->data+i, strlen("invite"));
73 i+= aimutil_putstr(newpacket->data+i, "invite", strlen("invite"));
74
75 /* instance */
76 i+= aimutil_put16(newpacket->data+i, 0xffff);
77
78 /* detail level */
79 i+= aimutil_put8(newpacket->data+i, 0x01);
80
81 /* tlvcount */
82 i+= aimutil_put16(newpacket->data+i, 0x0001);
83
84 /* room name */
85 i+= aim_puttlv_str(newpacket->data+i, 0x00d3, strlen(name), name);
86
87 aim_cachesnac(sess, 0x000d, 0x0008, 0x0000, NULL, 0);
88
89 aim_tx_enqueue(sess, newpacket);
90
91 return sess->snac_nextid;
92 }
93
94 static int parseinfo_perms(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen, struct aim_snac_t *snac2)
95 {
96 aim_rxcallback_t userfunc;
97 int ret = 0;
98 struct aim_tlvlist_t *tlvlist;
99 struct aim_chat_exchangeinfo *exchanges = NULL;
100 int curexchange = 0;
101 struct aim_tlv_t *exchangetlv;
102 unsigned char maxrooms = 0;
103 struct aim_tlvlist_t *innerlist;
104
105 tlvlist = aim_readtlvchain(data, datalen);
106
107 /*
108 * Type 0x0002: Maximum concurrent rooms.
109 */
110 if (aim_gettlv(tlvlist, 0x0002, 1))
111 maxrooms = aim_gettlv8(tlvlist, 0x0002, 1);
112
113 /*
114 * Type 0x0003: Exchange information
115 *
116 * There can be any number of these, each one
117 * representing another exchange.
118 *
119 */
120 curexchange = 0;
121 while ((exchangetlv = aim_gettlv(tlvlist, 0x0003, curexchange+1))) {
122 curexchange++;
123 exchanges = realloc(exchanges, curexchange * sizeof(struct aim_chat_exchangeinfo));
124 /* exchange number */
125 exchanges[curexchange-1].number = aimutil_get16(exchangetlv->value);
126 innerlist = aim_readtlvchain(exchangetlv->value+2, exchangetlv->length-2);
127
128 /*
129 * Type 0x000d: Unknown.
130 */
131 if (aim_gettlv(innerlist, 0x000d, 1))
132 ;
133
134 /*
135 * Type 0x0004: Unknown
136 */
137 if (aim_gettlv(innerlist, 0x0004, 1))
138 ;
139
140 /*
141 * Type 0x0002: Unknown
142 */
143 if (aim_gettlv(innerlist, 0x0002, 1)) {
144 unsigned short classperms;
145
146 classperms = aim_gettlv16(innerlist, 0x0002, 1);
147
148 faimdprintf(sess, 1, "faim: class permissions %x\n", classperms);
149 }
150
151 /*
152 * Type 0x00c9: Unknown
153 */
154 if (aim_gettlv(innerlist, 0x00c9, 1))
155 ;
156
157 /*
158 * Type 0x00ca: Creation Date
159 */
160 if (aim_gettlv(innerlist, 0x00ca, 1))
161 ;
162
163 /*
164 * Type 0x00d0: Mandatory Channels?
165 */
166 if (aim_gettlv(innerlist, 0x00d0, 1))
167 ;
168
169 /*
170 * Type 0x00d1: Maximum Message length
171 */
172 if (aim_gettlv(innerlist, 0x00d1, 1))
173 ;
174
175 /*
176 * Type 0x00d2: Maximum Occupancy?
177 */
178 if (aim_gettlv(innerlist, 0x00d2, 1))
179 ;
180
181 /*
182 * Type 0x00d3: Exchange Name
183 */
184 if (aim_gettlv(innerlist, 0x00d3, 1))
185 exchanges[curexchange-1].name = aim_gettlv_str(innerlist, 0x00d3, 1);
186 else
187 exchanges[curexchange-1].name = NULL;
188
189 /*
190 * Type 0x00d5: Creation Permissions
191 *
192 * 0 Creation not allowed
193 * 1 Room creation allowed
194 * 2 Exchange creation allowed
195 *
196 */
197 if (aim_gettlv(innerlist, 0x00d5, 1)) {
198 unsigned char createperms;
199
200 createperms = aim_gettlv8(innerlist, 0x00d5, 1);
201 }
202
203 /*
204 * Type 0x00d6: Character Set (First Time)
205 */
206 if (aim_gettlv(innerlist, 0x00d6, 1))
207 exchanges[curexchange-1].charset1 = aim_gettlv_str(innerlist, 0x00d6, 1);
208 else
209 exchanges[curexchange-1].charset1 = NULL;
210
211 /*
212 * Type 0x00d7: Language (First Time)
213 */
214 if (aim_gettlv(innerlist, 0x00d7, 1))
215 exchanges[curexchange-1].lang1 = aim_gettlv_str(innerlist, 0x00d7, 1);
216 else
217 exchanges[curexchange-1].lang1 = NULL;
218
219 /*
220 * Type 0x00d8: Character Set (Second Time)
221 */
222 if (aim_gettlv(innerlist, 0x00d8, 1))
223 exchanges[curexchange-1].charset2 = aim_gettlv_str(innerlist, 0x00d8, 1);
224 else
225 exchanges[curexchange-1].charset2 = NULL;
226
227 /*
228 * Type 0x00d9: Language (Second Time)
229 */
230 if (aim_gettlv(innerlist, 0x00d9, 1))
231 exchanges[curexchange-1].lang2 = aim_gettlv_str(innerlist, 0x00d9, 1);
232 else
233 exchanges[curexchange-1].lang2 = NULL;
234
235 aim_freetlvchain(&innerlist);
236 }
237
238 /*
239 * Call client.
240 */
241 if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
242 ret = userfunc(sess, rx, snac2->type, maxrooms, curexchange, exchanges);
243 curexchange--;
244 while(curexchange >= 0) {
245 free(exchanges[curexchange].name);
246 free(exchanges[curexchange].charset1);
247 free(exchanges[curexchange].lang1);
248 free(exchanges[curexchange].charset2);
249 free(exchanges[curexchange].lang2);
250 curexchange--;
251 }
252 free(exchanges);
253 aim_freetlvchain(&tlvlist);
254
255 return ret;
256 }
257
258 static int parseinfo_create(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen, struct aim_snac_t *snac2)
259 {
260 aim_rxcallback_t userfunc;
261 struct aim_tlvlist_t *tlvlist, *innerlist;
262 char *ck = NULL, *fqcn = NULL, *name = NULL;
263 unsigned short exchange = 0, instance = 0, unknown = 0, flags = 0, maxmsglen = 0, maxoccupancy = 0;
264 unsigned long createtime = 0;
265 unsigned char createperms = 0;
266 int i = 0, cklen;
267 struct aim_tlv_t *bigblock;
268 int ret = 0;
269
270 if (!(tlvlist = aim_readtlvchain(data, datalen))) {
271 faimdprintf(sess, 0, "unable to read top tlv in create room response\n");
272 return 0;
273 }
274
275 if (!(bigblock = aim_gettlv(tlvlist, 0x0004, 1))) {
276 faimdprintf(sess, 0, "no bigblock in top tlv in create room response\n");
277 aim_freetlvchain(&tlvlist);
278 return 0;
279 }
280
281 exchange = aimutil_get16(bigblock->value+i);
282 i += 2;
283
284 cklen = aimutil_get8(bigblock->value+i);
285 i++;
286
287 ck = malloc(cklen+1);
288 memcpy(ck, bigblock->value+i, cklen);
289 ck[cklen] = '\0';
290 i += cklen;
291
292 instance = aimutil_get16(bigblock->value+i);
293 i += 2;
294
295 if (aimutil_get8(bigblock->value+i) != 0x02) {
296 faimdprintf(sess, 0, "unknown detaillevel in create room response (0x%02x)\n", aimutil_get8(bigblock->value+i));
297 aim_freetlvchain(&tlvlist);
298 free(ck);
299 return 0;
300 }
301 i += 1;
302
303 unknown = aimutil_get16(bigblock->value+i);
304 i += 2;
305
306 if (!(innerlist = aim_readtlvchain(bigblock->value+i, bigblock->length-i))) {
307 faimdprintf(sess, 0, "unable to read inner tlv chain in create room response\n");
308 aim_freetlvchain(&tlvlist);
309 free(ck);
310 return 0;
311 }
312
313 if (aim_gettlv(innerlist, 0x006a, 1))
314 fqcn = aim_gettlv_str(innerlist, 0x006a, 1);
315
316 if (aim_gettlv(innerlist, 0x00c9, 1))
317 flags = aim_gettlv16(innerlist, 0x00c9, 1);
318
319 if (aim_gettlv(innerlist, 0x00ca, 1))
320 createtime = aim_gettlv32(innerlist, 0x00ca, 1);
321
322 if (aim_gettlv(innerlist, 0x00d1, 1))
323 maxmsglen = aim_gettlv16(innerlist, 0x00d1, 1);
324
325 if (aim_gettlv(innerlist, 0x00d2, 1))
326 maxoccupancy = aim_gettlv16(innerlist, 0x00d2, 1);
327
328 if (aim_gettlv(innerlist, 0x00d3, 1))
329 name = aim_gettlv_str(innerlist, 0x00d3, 1);
330
331 if (aim_gettlv(innerlist, 0x00d5, 1))
332 createperms = aim_gettlv8(innerlist, 0x00d5, 1);
333
334 if ((userfunc = aim_callhandler(sess, rx->conn, snac->family, snac->subtype)))
335 ret = userfunc(sess, rx, snac2->type, fqcn, instance, exchange, flags, createtime, maxmsglen, maxoccupancy, createperms, unknown, name, ck);
336
337 free(ck);
338 free(name);
339 free(fqcn);
340 aim_freetlvchain(&innerlist);
341 aim_freetlvchain(&tlvlist);
342
343 return ret;
344 }
345
346 /*
347 * Since multiple things can trigger this callback,
348 * we must lookup the snacid to determine the original
349 * snac subtype that was called.
350 */
351 static int parseinfo(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen)
352 {
353 struct aim_snac_t *snac2;
354 int ret = 0;
355
356 if (!(snac2 = aim_remsnac(sess, snac->id))) {
357 faimdprintf(sess, 0, "faim: chatnav_parse_info: received response to unknown request! (%08lx)\n", snac->id);
358 return 0;
359 }
360
361 if (snac2->family != 0x000d) {
362 faimdprintf(sess, 0, "faim: chatnav_parse_info: recieved response that maps to corrupt request! (fam=%04x)\n", snac2->family);
363 return 0;
364 }
365
366 /*
367 * We now know what the original SNAC subtype was.
368 */
369 if (snac2->type == 0x0002) /* request chat rights */
370 ret = parseinfo_perms(sess, mod, rx, snac, data, datalen, snac2);
371 else if (snac2->type == 0x0003) /* request exchange info */
372 faimdprintf(sess, 0, "chatnav_parse_info: resposne to exchange info\n");
373 else if (snac2->type == 0x0004) /* request room info */
374 faimdprintf(sess, 0, "chatnav_parse_info: response to room info\n");
375 else if (snac2->type == 0x0005) /* request more room info */
376 faimdprintf(sess, 0, "chatnav_parse_info: response to more room info\n");
377 else if (snac2->type == 0x0006) /* request occupant list */
378 faimdprintf(sess, 0, "chatnav_parse_info: response to occupant info\n");
379 else if (snac2->type == 0x0007) /* search for a room */
380 faimdprintf(sess, 0, "chatnav_parse_info: search results\n");
381 else if (snac2->type == 0x0008) /* create room */
382 ret = parseinfo_create(sess, mod, rx, snac, data, datalen, snac2);
383 else
384 faimdprintf(sess, 0, "chatnav_parse_info: unknown request subtype (%04x)\n", snac2->type);
385
386 if (snac2)
387 free(snac2->data);
388 free(snac2);
389
390 return ret;
391 }
392
393 static int snachandler(struct aim_session_t *sess, aim_module_t *mod, struct command_rx_struct *rx, aim_modsnac_t *snac, unsigned char *data, int datalen)
394 {
395
396 if (snac->subtype == 0x0009)
397 return parseinfo(sess, mod, rx, snac, data, datalen);
398
399 return 0;
400 }
401
402 faim_internal int chatnav_modfirst(struct aim_session_t *sess, aim_module_t *mod)
403 {
404
405 mod->family = 0x000d;
406 mod->version = 0x0000;
407 mod->flags = 0;
408 strncpy(mod->name, "chatnav", sizeof(mod->name));
409 mod->snachandler = snachandler;
410
411 return 0;
412 }

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